You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="Ejercicio:_Barco_musical" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Ca:Pagename" missing="" />
      <page ns="0" title="Calendari, per programar les visites a les vostres escoles/instituts" missing="" />
      <page pageid="11071" ns="0" title="Bitbot" />
      <page pageid="10302" ns="0" title="Calendari Dibatec 2016-2017" />
      <page pageid="10425" ns="0" title="Calendari Dibatec 5 (2017-2018)" />
      <page pageid="11132" ns="0" title="Desactiva la bomba" />
      <page pageid="10343" ns="0" title="Edubot" />
      <page pageid="30" ns="0" title="Ejercicio: 3 en ralla" />
      <page pageid="36" ns="0" title="Ejercicio: APIs" />
      <page pageid="49" ns="0" title="Ejercicio: AplicaciĆ³n de turismo y servicios" />
    </pages>
  </query>
</api>